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power: rk8xx: add support for RK806
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83d290c5 1/* SPDX-License-Identifier: GPL-2.0+ */
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2/*
3 * Copyright (c) 2017 Google, Inc
4 * Written by Simon Glass <[email protected]>
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5 */
6
7#ifndef _DM_OF_EXTRA_H
8#define _DM_OF_EXTRA_H
9
10#include <dm/ofnode.h>
11
12enum fmap_compress_t {
13 FMAP_COMPRESS_NONE,
b8bccced 14 FMAP_COMPRESS_LZMA,
e6c5c94a 15 FMAP_COMPRESS_LZ4,
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16
17 FMAP_COMPRESS_COUNT,
18 FMAP_COMPRESS_UNKNOWN,
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19};
20
21enum fmap_hash_t {
22 FMAP_HASH_NONE,
23 FMAP_HASH_SHA1,
24 FMAP_HASH_SHA256,
25};
26
27/* A flash map entry, containing an offset and length */
28struct fmap_entry {
29 uint32_t offset;
30 uint32_t length;
31 uint32_t used; /* Number of bytes used in region */
32 enum fmap_compress_t compress_algo; /* Compression type */
e6c5c94a 33 uint32_t unc_length; /* Uncompressed length */
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34 enum fmap_hash_t hash_algo; /* Hash algorithm */
35 const uint8_t *hash; /* Hash value */
36 int hash_size; /* Hash size */
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37 /* Node pointer if CBFS, else NULL */
38 const struct cbfs_cachenode *cbfs_node;
39 /* Hash node pointer if CBFS, else NULL */
40 const struct cbfs_cachenode *cbfs_hash_node;
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41};
42
43/**
be74f71a 44 * ofnode_read_fmap_entry() - Read a flash entry from the fdt
b7e0d73b 45 *
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46 * @node: Reference to node to read
47 * @entry: Place to put offset and size of this node
48 * Return: 0 if ok, -ve on error
b7e0d73b 49 */
5e0a7341 50int ofnode_read_fmap_entry(ofnode node, struct fmap_entry *entry);
b7e0d73b 51
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52/**
53 * ofnode_decode_region() - Decode a memory region from a node
54 *
55 * Look up a property in a node which contains a memory region address and
56 * size. Then return a pointer to this address.
57 *
58 * The property must hold one address with a length. This is only tested on
59 * 32-bit machines.
60 *
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61 * @node: ofnode to examine
62 * @prop_name: name of property to find
63 * @basep: Returns base address of region
64 * @sizep: Returns size of region
65 * Return: 0 if ok, -1 on error (property not found)
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66 */
67int ofnode_decode_region(ofnode node, const char *prop_name, fdt_addr_t *basep,
68 fdt_size_t *sizep);
69
70/**
71 * ofnode_decode_memory_region()- Decode a named region within a memory bank
72 *
73 * This function handles selection of a memory region. The region is
74 * specified as an offset/size within a particular type of memory.
75 *
76 * The properties used are:
77 *
78 * <mem_type>-memory<suffix> for the name of the memory bank
79 * <mem_type>-offset<suffix> for the offset in that bank
80 *
81 * The property value must have an offset and a size. The function checks
82 * that the region is entirely within the memory bank.5
83 *
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84 * @config_node: ofnode containing the properties (invalid for "/config")
85 * @mem_type: Type of memory to use, which is a name, such as
86 * "u-boot" or "kernel".
87 * @suffix: String to append to the memory/offset
88 * property names
89 * @basep: Returns base of region
90 * @sizep: Returns size of region
91 * Return: 0 if OK, -ive on error
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92 */
93int ofnode_decode_memory_region(ofnode config_node, const char *mem_type,
94 const char *suffix, fdt_addr_t *basep,
95 fdt_size_t *sizep);
96
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97/**
98 * ofnode_phy_is_fixed_link() - Detect fixed-link pseudo-PHY device
99 *
100 * This function detects whether the ethernet controller connects to a
101 * fixed-link pseudo-PHY device.
102 *
103 * This function supports the following two DT bindings:
104 * - the new DT binding, where 'fixed-link' is a sub-node of the
be74f71a 105 * Ethernet device
173c66bf 106 * - the old DT binding, where 'fixed-link' is a property with 5
be74f71a 107 * cells encoding various information about the fixed PHY
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108 *
109 * If both new and old bindings exist, the new one is preferred.
110 *
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111 * @eth_node: ofnode containing the fixed-link subnode/property
112 * @phy_node: if fixed-link PHY detected, containing the PHY ofnode
113 * Return: true if a fixed-link pseudo-PHY device exists, false otherwise
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114 */
115bool ofnode_phy_is_fixed_link(ofnode eth_node, ofnode *phy_node);
116
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117/**
118 * ofnode_eth_uses_inband_aneg() - Detect whether MAC should use in-band autoneg
119 *
120 * This function detects whether the Ethernet controller should use IEEE 802.3
121 * clause 37 in-band autonegotiation for serial protocols such as 1000base-x,
122 * SGMII, USXGMII, etc. The property is relevant when the Ethernet controller
123 * is connected to an on-board PHY or an SFP cage, and is not relevant when it
124 * has a fixed link (in that case, in-band autoneg should not be used).
125 *
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126 * @eth_node: ofnode belonging to the Ethernet controller
127 * Return: true if in-band autoneg should be used, false otherwise
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128 */
129bool ofnode_eth_uses_inband_aneg(ofnode eth_node);
130
b7e0d73b 131#endif
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